Student at the University of Iowa studying Sustainability Science with a certificate in GIS.
md`# Assignment 1, new data`
d3 = require("d3@5")
topojson = require("topojson-client@3")
Counties = FileAttachment("tl_2016_53_cousub.json").json()
counties_features = topojson.feature(Counties, Counties.objects.tl_2016_53_cousub)
csv_data = d3.csvParse(await FileAttachment("DECENNIALPL2020@1.P1-Data.csv").text(),({GeographicAreaName, TotalWhite, TotalAfricanAmerican, TotalPop}) => [GeographicAreaName, [+TotalWhite, +TotalWhite/+TotalPop]])
//this is how to take the values of a variable (column) from all variables you created from the csv file
Populationpct = Array.from(csv_data.values(), d => d[1])
//this is how you map the id column to the values. We will use this for joining with topojson later.
data = Object.assign(new Map(csv_data), {title: ["Pct of Pop, White"]})
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